Hello,
Thanks for clarifying. I have understood that.
According to your requirement, It can be added as a email template for admin. That needs feature request as you did correctly.
However, it is better to visit website dashboard everyday for a certain time to approve all. This might be what our users are doing. It could be a hassle for admin to visit dashboard every time he gets emails from all visitors if the website gets a lot of visitors.
Regards
Tanvir